<template>
  <view class="cart-container" v-if="cart.length!==0">
    <!-- 收货地址组件 -->
    <my-address></my-address>
    <!--商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧图标 -->
      <uni-icons type="shop" size="18"></uni-icons>
      <text class="cart-title-text">购物车</text>

      <!-- 右侧文本 -->
    </view>
    <!-- 购物车商品列表 -->
   
    <uni-swipe-action>
       <block v-for="(item,index) in cart" :key="index">
      <uni-swipe-action-item :right-options="options" @click="swipeItemClickHandler(item)" >
          <my-goods :goods="item" :showRadio="true" :showNum="true" @radio-change="radioChangeHandler" @num-change="numberChangeHandler"></my-goods>
      </uni-swipe-action-item>
       </block>
    </uni-swipe-action>
    
    <!-- 结算组件区域 -->
    <my-settle></my-settle>
  </view>
  
  <!-- 空白购物车区域 -->
  <view class="empty-cart" v-else>
    <image src="/static/cart_empty@2x.png" class="empty-img"></image>
    <text class="tip-text">空空如也!</text>
  </view>
</template>

<script>
  import badgeMix from '@/mixins/tabbar_badge.js'
  import {
    mapState,
    mapMutations
  } from 'vuex'

  export default {
    mixins: [badgeMix],
    computed: {
      ...mapState('m_cart', ['cart'])
    },
    data() {
      return {
options:[{
  text:'删除',
  style:{
    backgroundColor:'#C00000'
  }
}]
      };
    },
    methods: {
      ...mapMutations('m_cart',['updateGoodsState','updateGoodsCount','removeGoodsById']),
      radioChangeHandler(goods) { 
        this.updateGoodsState(goods)
        console.log(goods)
      },
      numberChangeHandler(e){
        this.updateGoodsCount(e)
      },
      swipeItemClickHandler(item){
        this.removeGoodsById(item)
      }
    }
  }
</script>

<style lang="scss">
  .cart-title {
    height: 40px;
    display: flex;
    align-items: center;
    padding-left: 5px;
    border-bottom: 1px solid #efefef;

    .cart-title-text {
      font-size: 14px;
      margin-left: 10px;
    }
  }
  .cart-container{
  padding-bottom: 50px;
  }
 .empty-cart {
   display: flex;
   flex-direction: column;
   align-items: center;
   padding-top: 150px;
 
   .empty-img {
     width: 90px;
     height: 90px;
   }
 
   .tip-text {
     font-size: 12px;
     color: gray;
     margin-top: 15px;
   }
 }
</style>